Roush Fenway Racing driver and former Daytona 500 champion Trevor Bayne has been diagnosed with multiple sclerosis, but the team announced Tuesday that the 22-year-old has been cleared by doctors to continue to compete in NASCAR.? Bayne has undergone testing at the Mayo Clinic, the same institution where he was examined repeatedly in 2011 for what the driver believed was Lyme disease, which sidelined him for two months that season. Multiple sclerosis is a more serious, less predictable disease of the central nervous system which interrupts the flow of information between the brain and the rest of the body, and symptoms can range from numbness and tingling to paralysis in extreme cases. "We are 100 percent supportive of Trevor and his ability to compete in a race car," Roush Fenway team owner Jack Roush said in a statement. More...